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ChlorKing · UV and Supplemental Treatment

Sentry Aqua Guard low-pressure UV systems

Low-pressure amalgam UV for chloramine control and secondary disinfection

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← Back to all productsRequest availabilityFacts summarized from manufacturer literature 2026-09-16; confirm details with FreyTech before specifying.

Overview

Sentry Aqua Guard is ChlorKing's low-pressure, high-output amalgam UV line for commercial pools, spas, and splash pads. Supplemental models reduce combined chlorine and are NSF/ANSI 50 certified; the secondary-disinfection models are additionally certified for 3-log Cryptosporidium inactivation. The line suits facilities that want UV with lower electrical draw than medium-pressure units and a simple LED status panel for operators.

Is this a fit for your facility?

Usually a fit when

  • Indoor pools with chloramine complaints
  • Splash pads and interactive water features
  • Spas and therapy pools
  • Secondary disinfection where code requires Crypto inactivation

Ideal facilities and conditions: Indoor pools with chloramine complaints; Splash pads and interactive water features; Spas and therapy pools; Secondary disinfection where code requires Crypto inactivation.

Problems it addresses

Key capabilities and benefits

Capabilities

  • High-output amalgam lamps for chloramine control and inactivation of chlorine-resistant pathogens
  • Supplemental models NSF/ANSI 50 certified; secondary models certified for 3-log Cryptosporidium per NSF 50 and EPA UV DGM
  • Patent-pending quick-disconnect sleeve assembly for lamp and sleeve service
  • PVC or stainless steel chambers; horizontal or vertical installation

Available models and configurations

SAG 120A / 240A / 480ASmaller pools and spas; PVC or stainless chamber
SAG 720A / 960A / 1200ALarger pools; stainless chamber
SAG APVC / SAG (secondary)Splash pads and pools requiring validated Crypto inactivation

Technical specifications

Supplemental modelsSAG 120A, 240A, 480A (PVC or stainless); SAG 720A, 960A, 1200A (stainless)Source: chlorking.com Sentry UV page
Secondary (Crypto) modelsSAG APVC (PVC) and SAG stainlessSource: chlorking.com Sentry UV page
CertificationNSF/ANSI 50; secondary line 3-log CryptosporidiumSource: chlorking.com Sentry UV page

Specifications are summarized from manufacturer literature and depend on configuration. Confirm current values with FreyTech before design.

Installation requirements and retrofit considerations

Installation requirements, utilities, and clearances are confirmed with the manufacturer's installation manual and your engineer during evaluation.

Integration with other equipment

No equipment integrations are documented for this product. Coordination happens through the design team.

FreyTech's role: design, installation, commissioning, training, support

Project services

  • Evaluation of fit for your facility
  • Availability, lead time, and service coverage confirmed on request
  • Installation and support coordination where offered

Ongoing service and support

  • Parts and warranty coordination on request

Brochures, manuals, warranties and specifications

All resources for Sentry Aqua Guard low-pressure UV systems · Request documents

Related products

See the UV and Supplemental Treatment category.

Related solutions: Stabilize water chemistry · Improve chemical safety · Modernize an aging equipment room

Next step

Is Sentry Aqua Guard low-pressure UV systems right for your facility?

Send us your pool volumes, current equipment, and what is not working. A specialist will review fit honestly and recommend next steps.

Serving commercial aquatic facilities across New York State.

Request a Facility AssessmentTalk to a Water-Quality Specialist

Prefer to talk? 1-800-724-2770